1.5" 4x8 DOW GREY RIGID FOAM BRD

DOW Grey Rigid Foam Insulation Board (1.5" x 4' x 8')

Elevate your project's thermal performance with the DOW 1.5-inch Grey Rigid Foam Board. Engineered for professional-grade moisture resistance and high R-value retention, this extruded polystyrene (XPS) insulation is the industry standard for durability and energy efficiency.

The distinct grey color signifies a specialized formulation designed to provide superior compressive strength, making it ideal for a wide range of residential and commercial applications.

Key Features

Dimensions: 1.5" Thick x 48" Wide x 96" Long.

Superior Thermal Resistance: Provides a consistent R-value of 7.5 to reduce energy costs and improve climate control.

Moisture Management: The closed-cell structure resists water absorption, preventing mold growth and maintaining insulation integrity in damp environments.

High Compressive Strength: Built to withstand pressure, making it suitable for under-slab and perimeter applications.

Easy Installation: Lightweight and easy to score, cut, and snap for a precision fit around joints and corners.

Versatile Applications

This board is a "jack-of-all-trades" for building envelopes, including:

Foundations & Perimeters: Excellent for below-grade moisture protection.

Crawl Spaces: Seals out drafts and dampness.

Exterior Walls: Creates a continuous thermal bridge break behind siding or masonry.

Concrete Slabs: Provides a thermal barrier between the ground and your flooring.

Technical Specifications

Pro Tip: Always use foam-compatible adhesives or mechanical fasteners. Standard solvent-based adhesives can "melt" or damage the foam structure.